What is actually being De-Carbed

[Ladiesinpinknightshirts]

A dirt bike racer friend of mine asked me what am I actually de-carbing when I do the SeaFoam in the tank and through carb routine. I couldn't tell him specifically. My understanding is it goes carb.. intake "manifold".. reeds.. piston.. exhaust power valve.. muffler. Is that the order.. am I missing or misunderstanding anything.. and what specifically is being de-carbed. (30hp Johnson '95).

Thanks in advance for the lesson.

He really wants to know.. and I guess so do I

 

[iwombat]

Re: What is actually being De-Carbed

The combustion chamber (heads, piston tops, rings and ring grooves), and everything downstream (exhaust ports, exhaust tubes).

You won't see carbon build-up on anything prior to the combustion chamber.

 

[tashasdaddy]

Re: What is actually being De-Carbed

it is like an enema, when you are stove up with constipation. it gets all the built up crap out, and cleans up the system.

i prefer this method:
Decarb, take a can of seafoam put 3/4 of it in the gas tank, with only 1 gallon of premixed gas. put the rest in a spray bottle. start the engine, and let it come up to temperature. then remove plugs, and them some real good shot of seafoam into the cylinders, replace plugs, let sit 15 minutes. restart, and spray the rest of the seafoam into the carbs, so the the motor almost stalls, wait and repeat until the seafoam is gone.then take for a wide open spin. then put in new plugs, ad premixed gas to the tank, and take it for a wide open throttle spin. it is going to smoke like a house on fire, during this process.